package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        // TODO 后期需要进行md5加密，然后再进行比对
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }
    /**
     * 新增员工
     *
     * @param  employeeDTO
     * @return
     */
    @Override
    public void sava(EmployeeDTO employeeDTO) {
        //对象转换
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO, employee);
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
     employee.setStatus(StatusConstant.DISABLE); //状态设置

     employeeMapper.sava(employee);
    }
    /**
     * 分页查询
     * @paramm ployeePageQueryDTO
     * @return
     */

    @Override
    public PageResult select(EmployeePageQueryDTO employeePageQueryDTO) {
        //设置分页参数
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
        List<Employee> list = employeeMapper.list(employeePageQueryDTO);
        Page<Employee> page = (Page<Employee>) list;//强制类型转
        PageResult pageResult = new PageResult(page.getTotal(),page.getResult());
        return pageResult;
    }
    /**
     * 更新员工状态
     * @paramm
     * @return
     */
    @Override
    public void startorstop(Integer status, Long id) {
       Employee employee = new Employee();
       employee.setId(id);
       employee.setStatus(status);
       employeeMapper.update(employee);
    }
    /**
     * 根据id来查询员工信息
     * @paramm id
     * @return
     */
    @Override
    public Employee getByID(Long id) {
        Employee byId = employeeMapper.getById(id);
        byId.setPassword("******");
        return byId;
    }
    /**
     * 修改(更新)员工信息
     * @paramm employee
     * @return
     */
    @Override
    public void editemp(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO, employee);
      //获取信息根据线程
      employeeMapper.update(employee);
    }

}
